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A204865 Number of (n+2) X 8 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..1 introduced in row major order. 1
75595, 603605, 5369493, 48713811, 462259671, 4356486501, 40833480416, 385816144851, 3642440054624, 34249495945028, 323403814654439, 3050971738074998, 28739189960559555, 271179030317522975 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A204867.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..0..1..0..1..1..0..1..0....0..0..0..1..0..0..0..0....0..0..0..1..1..0..1..1

..0..1..0..1..1..1..1..1....1..1..0..1..1..0..0..1....1..0..1..1..1..0..0..1

..1..1..0..0..0..0..0..0....1..0..0..1..0..1..1..1....1..1..0..1..0..0..0..1

..1..1..1..1..0..1..0..1....1..0..0..1..1..1..1..0....1..0..0..0..1..0..1..0

..0..0..1..1..0..1..1..1....1..1..0..0..0..0..0..1....0..1..0..1..1..1..1..1

CROSSREFS

Sequence in context: A204360 A236817 A140940 * A323025 A323804 A135209

Adjacent sequences:  A204862 A204863 A204864 * A204866 A204867 A204868

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 2012

STATUS

approved

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Last modified June 18 10:09 EDT 2021. Contains 345098 sequences. (Running on oeis4.)